/**
* Extracts the compressed file and copies the files from the root directory
* only if the compressed file contains a single directory.
* @param string $file Compressed file.
* @param string $path Destination path.
* @param Format\FormatInterface $format Format.
*
* @throws Exception\IO\Input\FileEmptyException
* @throws Exception\IO\Input\FileFormatNotSupportedException
* @throws Exception\IO\Input\FileNotFoundException
* @throws Exception\IO\Input\FileNotReadableException
* @throws Exception\IO\Output\NotSingleDirectoryException
* @throws Exception\IO\Output\TargetDirectoryNotWritableException
*
* @return bool
*/
public function extractWithoutRootDirectory($file, $path, FormatInterface $format = null)
{
$this->initializeIfNotInitialized();
// extract to a temporary place
$tempDirectory = sys_get_temp_dir() . DIRECTORY_SEPARATOR . uniqid(time()) . DIRECTORY_SEPARATOR;
$this->extract($file, $tempDirectory, $format);
// move directory
$iterator = new \FilesystemIterator($tempDirectory, \FilesystemIterator::SKIP_DOTS);
$hasSingleRootDirectory = true;
$singleRootDirectoryName = null;
$numberDirectories = 0;
while ($iterator->valid() && $hasSingleRootDirectory) {
$uncompressedResource = $iterator->current();
if (false === $uncompressedResource->isDir()) {
$hasSingleRootDirectory = false;
}
$singleRootDirectoryName = $uncompressedResource->getRealPath();
$numberDirectories++;
if ($numberDirectories > 1) {
$hasSingleRootDirectory = false;
}
$iterator->next();
}
if (false === $hasSingleRootDirectory) {
// it is not a compressed file with a single directory
$this->filesystem->remove($tempDirectory);
throw new Exception\IO\Output\NotSingleDirectoryException($file);
}
$this->filesystem->remove($path);
$this->filesystem->rename($singleRootDirectoryName, $path);
return true;
}
/**
* {@inheritdoc}
*/
public function extract($source, $target, FormatChainInterface $chainFormat)
{
$chainFormats = $chainFormat->getChainFormats();
foreach ($chainFormats as $format) {
if (false === $this->supportChecker->isFormatSupported($format)) {
throw new FileFormatNotSupportedException($source, $format);
}
}
$success = true;
$lastFile = $source;
$tempDirectories = [];
for ($i = 0, $formatsCount = count($chainFormats); $i < $formatsCount && true === $success; $i++) {
if ($i + 1 === $formatsCount) {
// last
$success = $this->extractFormat($lastFile, $target, $chainFormats[$i]);
} else {
$tempDirectory = $target . DIRECTORY_SEPARATOR . 'step_' . $i;
$tempDirectories[] = $tempDirectory;
$success = $this->extractFormat($lastFile, $tempDirectory, $chainFormats[$i]);
// look for the uncompressed file
$iterator = new \FilesystemIterator($tempDirectory, \FilesystemIterator::SKIP_DOTS);
$extractedFile = null;
while ($iterator->valid()) {
$extractedFile = $iterator->current();
$iterator->next();
}
if (null === $extractedFile) {
throw new FileCorruptedException($lastFile);
}
$lastFile = $extractedFile->getRealPath();
}
}
// clean temp directories
foreach ($tempDirectories as $directory) {
$this->filesystem->remove($directory);
}
return $success;
}
